Multiple-choice
A multiple-choice test consists of 4 questions. Each question has three different answers, with only one answer being correct. Each question is answered randomly by one student.
Determine the expected value for the number of correct answers that the student gets.
Determine the expected value for the number of correct answers that the student gets.
Correct answer:
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Do you want to convert time units like minutes to seconds?
Would you like to compute the count of combinations?
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statisticscombinatoricsnumbersUnits of physical quantitiesGrade of the word problem
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